Popular Science Monthly 



the work, and to moving it to the machine 

 employed for the next operation. 



Prior to the first operation on any part, 

 the necessary material must, of course, be 

 in stock, or in "stores." To guard against 

 any possibility of failure, it is well to have 

 the material in "stores" a few days before 

 it will be needed, say eight days, so 

 another cage is mounted on the strip, 

 eight days to 

 the left of 

 the first ope- 

 ration cage. 

 To the left 

 of this 

 "store" cage 

 is an "order" 

 cage. This 

 "order" cage 

 i s mounted 

 such number 

 of days to 

 theleft of the 

 "store" cage 

 as may be 

 needed for 

 the filling of 

 the purchas- 

 ing agent's 

 order. A 

 few work 

 days to the 

 left of this 

 "order" cage 



is placed a requisition block, specifying 

 the kind of material needed, to act as a 

 guide for the purchasing agent so that 

 he may make any necessary search of the 

 market, or bargain for fair prices. 



tape 



Operator seated before a 

 from reports the numbers 



This completes the record of the required 

 progress for Part B. 



The requisite progress on every other 

 part, whether a unit part or composed of 

 several unit parts, is similarly mounted on 

 its individual strip. This mounting of 

 the control boards is permanent just as 

 long as the same model of automobile 

 is built and each strip contains full 



directions 

 for all opera- 

 tions and 

 acts required 

 in the manu- 

 facture of its 

 particular 

 part. 



Mounted 

 so as con- 

 veniently to 

 measure the 

 location of 

 the cages are 

 tw^o "work- 

 day" tapes. 

 The upper 

 tape is di- 

 vided into 

 consecutive 

 work -day 

 periods and 

 is used to 

 measure the 

 distance of 

 the various cages from the zero line. The 

 lower tape is similarly divided, but 

 marked so as to read in calendar work- 

 days, i. e., the days of the month, omitting 

 Sundays and holidays. A third tape, a 



"Control Board" figuring 

 he should post for the day 



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division to right each day. According to the "100" at its right end, one hundred cars 

 a car. At the bottom of the control board are metal tapes showing calendar days 



